Signal-lamp.



UNITED STATES PATENT OFFICE.

THOMAS MCWATTERS, OF SWISSVALE, PENNSYLVANIA, ASSIGNORVOF TWO-THIRDS TOJOSEPH M. FLANNERY, OF BRADDOCK, PENNSYL- VANIA, AND ANDREW H. MCKIM ANDALEXANDER MCKIM, SR., OF

SWISSVALE, PENNSYLVANIA.

lSIG NAL- LAM P.

srEoIFIoATIoN forming part of Letters ramping, 705,280, .dated July 22,1902.

Application filed July24,19lll.. Serial No. 69,539." (No model.)

To all whom it mayoonoerfn;

Be it known that I, THoMAsMoWArTERs, a subject of the King of GreatBritain and Ireland, residing at Swissvale, infthecounty of Alleghenyand State of Pennsylvania, have invented a certain new and usefuliImprovement in Signal-Lampsmf which the following is a speciication,reference being' had to the accompanying drawings, A which `form a partof this specification, in whicl1- Figure l indicates an elevation,partly inA section, of myimproved signal-lamp. Fig. 2

is a sectional elevation of the inner cylinder..

Fig. 3 is a section taken 0n line 3 3 offFig. l'. My invention relatesto improvements in signal-lamps; and the object of my invention is toproduce a lamp of this. character in which the greatest possiblesimplicity of construction and efficiency is attained.

To accomplish these objects, my invention consists in thenovelconstruction and arrangement of parts hereinafter more specificallydescribed, reference being had to the accompanying drawings, formingpart hereof, in which like reference characters indicate like partswherever they occur.V

Referring to said drawings, l is a cylindrical vessel open at the topandprovided with a handle 2 andopposite thereto an open-i ing circularin conformation andto' which is connected the diverging funnel 3, theopen-.

ing therein being closed by a lens or glass' plate 4. Y

5 is a lamp suitably secured in the bottom of said cylinder,to the rearof and upon whichis secured the vertically-disposed reiiector 6,

which is located at the rear of and in alinement with the lens orglass4, theV lamp being intermediate the same.

7 is a cylindricalvessel open atthe' bottom" and adapted to be seatedwithin the firstmentioned vessel, inclosing the lamp therein.

The said vessel'isprovided with'an openingsame* for the purposehereinafter described `andis also provided lwith-an annular recess 12near the top thereof, in which the springcontrolledtriggerV 13 is seatedand guided,

vthe said recess havingfstop notches or holes Vlei, adapted toreceivethe inner end trigger,

and thus lock the inner 'cylinder in position and against-movement atsuch times as the different lenses are .rotated into position in frontofthe lamp andopposite the orifice in vthe front of the cylinder l. Thetop of said ycylinder-fis closedand is provided with an annular capperforated in the top, through which the products of:l combustion fromthe lampare' permitted to escape.

The operation of my device is as follows,

viz :V The lamp being in the position v shown in 1, thus showinga redlight or danger signal.

Having described my invention, what I claim, and desire to secureby'Le'tters Patent, is'.-

' In a signal-lamp, the combination of a cylinder closed at the bottomand provided with a lamp and having a circular aperture in the frontthereofan inner cylinder, adapted'to -beseated in said first-mentionedcylinder,

Shaving an annularrecess nearfthe top there- ',of, aspring-controlledtrigger adapted to be seated and guided in saidrecess'and to lock' the said inner'cylinder'in any given position, andmeans to rotate said cylinder, substantially as described. l

In testimony whereof Ihave hereunto set my signature in the presence oftwo subscribing witnesses. -Y

THOMAS MCWATTERS. Witnesses:

JOHN H. RQNEY, ANDREW H. MoKIM.

